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DRI DIETARY REFERENCE INTAKES FOR Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride
TABLE 6-1 Magnesium (Mg) Balance Studies in Adolescents Aged 9 through 18 Years
Study, Year
n
Age (y)
Weight (kg)
Adaptation period (d)
Balance period (d)
Average Daily Mg Intake
Balance
Comments
Females
Andon et al., 1996
13
10.5–12.5
39 ± 5
7
7
176 mg (4.45 mg/kg)
19 ± 25 mg/d
Intake >5.0 mg/kg/d resulted in positive balance in all subjects.
13
42 ± 8
7
7
176 mg (4.45 mg/kg)
22 ± 15 mg/d
Half of subjects on 1,667 mg Ca/d; half on 1667 mg Ca/d.
Greger et al., 1978
5
12.5–14.5
34.5–58.5
9
21
190 ± 29mg
−6.8 ± 10.4mg/d
At intakes of 4.0 mg/kg/d, only 2 of the 26 girls were in positive balance.
5
9
21
195 ± 29 mg
−6.8 ± 10.4 mg/d
At intakes of 4.0 mg/kg/d, only 2 of the 26 girls were in positive balance.
